Proton and ion beams generated with picosecond CO2 laser pulses

Igor Pogorelsky, Peter Shkolnikov, Min Chen, Alexander Pukhov, Vitaly Yakimenko, Paul McKenna, David Carroll, David Neelye, Zulfikar Najmudin, Louise Willingale, Daniil Stolyarov, Elena Stolyarova, George Flynn

Research output: Contribution to journalConference article

10 Citations (Scopus)

Abstract

1-TW, 6-ps, circularly polarized CO2 laser pulses focused onto thin Al foils are used to drive ion acceleration. The spectra of ions and protons generated in the direction normal to the rear surface, detected with a compact magnet spectrometer with CR39, reveals a broad proton high-energy peak at ∼1 MeV. This observation conforms to the theoretical predictions that circularly polarized laser pulses are less efficient than linearly polarized pulses in driving ion acceleration via the Target Normal Sheath Acceleration (TNSA) mechanism. Instead, there is evidence that the circularly polarized laser may provide direct ponderomotive acceleration of ions and protons. We report also the first application of the BNL proton source in nano-science. Irradiation of graphite and graphene films produced local defects and membranes for variety of applications.

Original languageEnglish
Pages (from-to)532-537
Number of pages6
JournalAIP Conference Proceedings
Volume1086
Issue number1
DOIs
Publication statusPublished - 13 Apr 2009
Event13th Advanced Accelerator Concepts Workshop - Santa Cruz, CA, United States
Duration: 27 Jul 20082 Aug 2008

Keywords

  • C0 laser
  • graphene
  • ion acceleration
  • protons
  • spectrometer

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    Pogorelsky, I., Shkolnikov, P., Chen, M., Pukhov, A., Yakimenko, V., McKenna, P., ... Flynn, G. (2009). Proton and ion beams generated with picosecond CO2 laser pulses. AIP Conference Proceedings, 1086(1), 532-537. https://doi.org/10.1063/1.3080963